1100246 - [10.10] Scrollbars should flash when switching tabs

Status: RESOLVED WORKSFORME

(Core :: Widget: Cocoa, defect)

Description

[José Jeria]

Build ID: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:36.0) Gecko/20100101 Firefox/36.0

STR:
1. Go to http://stackoverflow.com/questions/16358494/adding-data-given-by-the-user-to-an-array-objective-c
2. Switch to other tab
3. Switch back to URL in step 1

Expected results:
The scrollbars should flash when going back. The page and the second block, which is scrollable, should flash when switching back to the tab.

Note that this behavior seems to have changed in each OS X release, but scrollbars flash in Safari/Yosemite when switching back to a tab. Scrollbars do not flash on page-load.

Comment 1

[MarjaE]

I don't understand, why should Firefox hurt the user? I know Safari does. I for one use Firefox because in Firefox I can disable the flashing cursors, I can block more animation, etc., so I can use Firefox without getting strobed or getting migraines.

Comment 2

[Markus Stange [:mstange]]

This is about overlay scrollbars, which are usually invisible, and having them appear briefly during tab switch would indicate that the page is scrollable. If you want to minimize flashing, you have probably set your "show scrollbars" setting to "always", so the change in this bug would not affect you.

Comment 3

[Tracy Walker [:tracy]]

This works for me with latest Nightly 52.0a1, 20161109030210. You must have set the following for this to behave as expected:

Systems Preferences > General > Show scroll bars: When scrolling